Rescuers near Bear Lake prepare to resume the search for missing Texas man Troy Green in Rocky Mountain National Park. (Provided by Rocky Mountain National Park)

Troy Green

Search parties have spent more than two days looking for a 39-year-old Texas man who was reported missing by his wife Thursday.

Two people told Rocky Mountain National Park rangers that they spoke with Troy Green at 1 p.m. Thursday, but they didn't see what direction he went.

An investigation by rangers coupled with reports from witnesses determined that the San Antonio resident purchased hiking gear after arriving in Colorado, said RMNP spokeswoman Kyle Patterson.

"It is possible that he was wearing black snow pants, a black puffy down jacket, black gloves and a black balaclava," she said in an e-mail Sunday.

Forty-five searchers and a number of rescue dogs were hunting for Green in off-trail areas between Bear Lake and Dream Lake on Sunday.

Larimer County Search and Rescue, Rocky Mountain Rescue, Douglas County Search and Rescue, Arapahoe Rescue Patrol and Summit County Rescue assisted rangers in the search. Planes also are active in an aerial search of the area, Patterson said.

Green disappeared after coming to Colorado for a conference. His wife called the Denver Police Department when he failed to contact her Thursday.

Park rangers on Friday located a car that matched the description of Green's rental car at the Bear Lake parking lot.

Nine inches of snow fell at Bear Lake from Wednesday through Friday, and it is not known if Green was dressed for cold weather.

Anyone who visited the Bear Lake area of Rocky Mountain National Park on Thursday or Friday is asked to call park rangers at 970-586-1204.